Same here on Intel Core 2 Duo on 2.6.25-r9-zen0: temp under idle is 59°C
It might be the reading which isn't correct because my fan doesn't turn any harder?
I don't know if it's the same problem on 2.6.24-zen4 or zen5 because I can't seem to get those working (hard lock on udevd while booting)_________________Windoze : Plug and Pay...

Okay, now I'm using gentoo-sources-2.6.25 and coretemp definitely does show much much higher temps than before. It is showing 47C but the CPU temp from uguru3 shows 29C (previously, uguru and coretemp would almost always match or be within 1 degree).

Same here on Intel Core 2 Duo on 2.6.25-r9-zen0: temp under idle is 59°C
It might be the reading which isn't correct because my fan doesn't turn any harder?
I don't know if it's the same problem on 2.6.24-zen4 or zen5 because I can't seem to get those working (hard lock on udevd while booting)

it isn't (at least for me) - I've started experiencing this "behavior" since 2.6.25-rc* kernel-releases

Thats because new kernel (lm_sensors, etc?, etc?)incorrectly thinks our cpu's Tj is 100C, whereas for all core 2 duo's it is 85C (100C is for C0 stepping and above, AFAIK). Substract 15 and you'll get real temps.

Thats because new kernel (lm_sensors, etc?, etc?)incorrectly thinks our cpu's Tj is 100C, whereas for all core 2 duo's it is 85C (100C is for C0 stepping and above, AFAIK). Substract 15 and you'll get real temps.

They set 85C for all cpu's with model 15 and stepping(not sure) <4. Core2duo E6600 has stepping 6...
In previous kernel all Core's with stepping >3 got 85C which obviously confused quad and 45nm owners, I think.

PS: Well, details are surely wrong, but the main idea is wrong cpu detection